Cable structure
A cable structure includes a tubular body, a main spacer, a first spacer, a first protector, a second protector and a plurality of twisted pairs. The tubular body is disposed in the tubular body. The first spacer is substantially perpendicularly connected to the main spacer in a central position. The first protector and the second protector are disposed at two ends of the main spacer. A first channel is formed by the main spacer, the first protector and the second protector, a second channel is formed by the main spacer, the first protector and the first spacer, and a third channel is formed by the main spacer, the second protector and the first spacer. The twisted pairs are disposed in the first channel, the second channel and the third channel.
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The invention relates to a cable, and more particularly to cable having an anti-crosstalk structure.
Description of the Related ArtIn a network system, a network cable is used for signal transmission to a device connected to the network system. The more network develops, the transmission speed of signals via the network cable is also required to be faster. Therefore, the current network construction environment tends to be densely arranged, and the network cable that is laid out will also tend to have a tight structure.
Since electromagnetic waves are emitted from the core wires of each network cable when signals are transmitted in the network cable, it is needed to isolate or reduce the electromagnetic waves emitted by other core wires to improve the transmission efficiency in the network cable without affecting the signal transmitted therein.
In order to solve this problem, the prior art, such as the U.S. Pat. No. 7,772,494, discloses a structure of an isolation bracket, which is formed by combining two H-shaped brackets in a misalignment manner and forming four isolation channels. Each of the four twisted pairs in a network cable are respectively received in an isolation channel, and the spacers are used to reduce the mutual interference between the four pairs of twisted pairs. Two bumps are additionally disposed on the two spacers on the outer side of the H-shaped bracket. When the plurality of network cables are close to each other, the two adjacent network cables can be separated by the bumps. Although the bracket can effectively block four Crosstalk interference between twisted pairs, and can also effectively prevent crosstalk interference with external network cables, it also produces reduction of the complementary effect between the complementary twisted pairs due to the isolation structure. At the same time, it costs more for the cross-shaped isolation bracket which is a more conventional art.
In addition, a conventional T-shaped isolation bracket is disclosed in the prior art, such as Japan patent publication No. P2004-311120A. The T-shaped structure is divided into three core channels, and two of the four twisted pairs of network cables are received in one of the channels, and the other two twisted pairs are received in the rest two channels respectively. Similarly, a conventional technique such as U.S. Pat. No. 7,897,875 discloses a T-isolated bracket based on the contents of the aforementioned Japan patent. It is further disclosed that the twisted pair having the second longest pitch and the twisted pair having the shortest pitch are received in the same channel, and the twisted pair having the longest pitch and the twisted pair having the second shortest pitch are received in the rest two channels respectively. Although the aforementioned T-shaped bracket further has no separation for the complementary twisted pairs, so that the signals in the complementary twisted pairs can complement each other, and can also isolate the crosstalk of the remaining twisted pairs, such a structure cannot effectively avoid the crosstalk interference caused by the external network cable, which is the shortcoming of this technology.
BRIEF SUMMARY OF THE INVENTIONIn view of the above-mentioned shortcomings, an object of the present invention is to provide a cable structure with an isolation bracket, which is arranged by internal spacers and protectors to prevent crosstalk interference with adjacent cable. It effectively enhances the ability of external crosstalk, and at the same time, the plurality of core wires of the twisted pairs disposed in the same channel also complement each other.
The invention provides a cable. The cable in accordance with an exemplary embodiment of the invention includes a tubular body, a main spacer, a first spacer, a first protector, a second protector and a plurality of twisted pairs. The tubular body is disposed in the tubular body. The first spacer is disposed in the tubular body and substantially perpendicularly connected to the main spacer at a central position. The first protector is disposed at an end of the main spacer and connected to the main spacer at an angle. The second protector is disposed at another end of the main spacer and connected to the main spacer at an angle, wherein a first channel is formed by the main spacer, the first protector and the second protector, a second channel is formed by the main spacer, the first protector and the first spacer, and a third channel is formed by the main spacer, the second protector and the first spacer. The twisted pairs are disposed in the first channel, the second channel and the third channel, wherein an even number of the twisted pairs are received in the first channel, one of the twisted pairs is received in the second channel and another one of the twisted pairs is received in the third channel.
The first protector and the second protector can respectively fix the twisted pairs to the first channel, the second channel and the third channel. The first protector and the second protector can respectively prevent the crosstalk caused by the adjacent cable. The main spacer and the first spacer are arranged to isolate the interference caused by the twisted pair disposed on the first channel, the second channel and the third channel respectively. The plurality of core wires disposed in the twisted pairs of the same channel have complementary effect respectively.
A detailed description is given in the following embodiments with reference to the accompanying drawings.
The invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:
The following description is of the best-contemplated mode of carrying out the invention. This description is made for the purpose of illustrating the general principles of the invention and should not be taken in a limiting sense. The scope of the invention is best determined by reference to the appended claims.
Referring to
Referring to the
The first protector 21 and the second protector 22 respectively fix the twisted pairs 4 to the first channel 23, the second channel 24, and the third channel 25, respectively. When a plurality of the cable structure of the present invention are juxtaposed, the first protector 21 and the second protector 22 can block crosstalk interference caused by adjacent cables, thereby effectively improving the ability of external crosstalk, and at the same time, the main spacer 2 and the first spacer 3 further isolate the interference generated by the twisted pairs 4 respectively disposed in the first channel 23, the second channel 24, and the third channel 25, and signals in a plurality of core wires 42 of the twisted wires 4 disposed in the same channel respectively can complement each other.
A plurality of protrusions 11 are disposed on an inner surface of the tubular body and equally-spaced thereon. The protrusions 11 can enhance the prevention of the crosstalk between the adjacent cables.
Referring to the
In addition, as shown in
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While the invention has been described by way of example and in terms of preferred embodiment, it is to be understood that the invention is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.
Claims
1. A cable structure, comprising: a plurality of twisted pairs disposed in the first channel, the second channel and the third channel, wherein an even number of the twisted pairs are received in the first channel, one of the twisted pairs is received in the second channel and another one of the twisted pairs is received in the third channel;
- a tubular body;
- a main spacer disposed in the tubular body;
- a first spacer disposed in the tubular body and substantially perpendicularly connected to the main spacer in a central position;
- a first protector disposed at an end of the main spacer and connected to the main spacer at an angle;
- a second protector disposed at another end of the main spacer and connected to the main spacer at an angle; wherein a first channel is formed by the main spacer, the first protector and the second protector, a second channel is formed by the main spacer, the first protector and the first spacer, and a third channel is formed by the main spacer, the second protector and the first spacer; and
- wherein the first protector and the second protector extend above a top of the main spacer a first distance that is greater than a diameter of the plurality of twisted pairs, respectively, and the first protector and the second protector extend below a bottom of the main spacer a second distance that is greater than the diameter of the plurality of twisted pairs, respectively.
2. The cable structure as claimed in claim 1, wherein the first spacer is integrated with the main spacer.
3. The cable structure as claimed in claim 1, wherein the first protector and the second protector are parallel.
4. The cable structure as claimed in claim 1, wherein the first protector has a curved outer wall disposed lower than the main spacer.
5. The cable structure as claimed in claim 1, wherein the second protector has an outer wall provided with a triangular cross section disposed higher the main spacer.
6. The cable structure as claimed in claim 1, wherein the first protector has a curved outer wall.
7. The cable structure as claimed in claim 1, wherein each of the twisted pairs has two core wires, and each of the core wire is enclosed by an insulating material, and the core wires enclosed by the insulating material are twisted to form the twisted pair.
8. The cable structure as claimed in claim 1, wherein a plurality of equally-spaced protrusions are disposed on an inner wall of the tubular body.
9. The cable structure as claimed in claim 1, wherein the twisted pair having the longest pitch and the twisted pair having the shortest pitch are received in the first channel.
10. The cable structure as claimed in claim 9, wherein the twisted pair having the second shortest pitch is received in the second channel.
11. The cable structure as claimed in claim 9, wherein the twisted pair having the second longest pitch is received in the third channel.
12. The cable structure as claimed in claim 1, wherein the angle between the first protector and the main spacer and the angle between the second protector and the main spacer have a range between 60° and 120°.
7772494 | August 10, 2010 | Vexler et al. |
7897875 | March 1, 2011 | Gareis |
20040055781 | March 25, 2004 | Cornibert |
20090173514 | July 9, 2009 | Gareis |
P2004-311120 | November 2004 | JP |
Type: Grant
Filed: Aug 7, 2019
Date of Patent: Jun 30, 2020
Assignee: JYH ENG TECHNOLOGY CO., LTD. (New Taipei)
Inventor: Yen-Lin Lin (New Taipei)
Primary Examiner: Timothy J Thompson
Assistant Examiner: Amol H Patel
Application Number: 16/534,883
International Classification: H01B 11/08 (20060101); H01B 11/10 (20060101);